This specification discloses a method of disposing of solid refuse and converting it into usable end products. Two basic groups of method steps are involved. One is the sorting of the refuse to segregate metals, cardboard, cartons and papers; bottles and glass; cloth and rags; and plastics, together with attending steps of treating the sorted components to reclaim them for usage. The second group of steps is the processing of the organic materials which remain after the above solids have been re...

The specification of this application describes a target practice system which includes an optical arrangement by which light may be directed from a gun towards a target. The target includes a photosensitive means connected to initiate a scoring display system. The source of light for the gun is located at a point remote from the gun and light from the source is conveyed to the gun through a fiber optical conducting system. The source generates flashes of light in a gas tube which is fired by an...

This relates to the treatment and purification of refuse by composting in the form of thermal retting. Conventional refuse is treated by the addition of moisture, preferably in the form of sludge, after which it is crushed in a mill and is screened in tube screens with large particles being removed and discarded, intermediate particles being returned to the crushing mill, and small particles being delivered for composting. Metals, particularly ferrous metals, are removed from each of the three c...

Disclosed is a method for transforming Municipal Solid Waste (MSW) into a useful compost material. The method involves both a pre-treatment and a treatment phase. In the pre-treatment phase, a waste stream is processed to remove valuable waste after which the waste is ground to a suitable size. In the treatment phase, heat and pressure are applied to the waste and activators are added to sterilize the waste and transform it into a useful end product.

A fertilizer is made by adding dry fertilizer chemicals, including urea, to dry composted organic waste materials, following which a mixture of prepolymer of urea and formaldehyde suspended in an excess of formaldehyde is added and then phosphoric acid or other mineral acid is added in order to produce the fertilizer product.

Disclosed is a method for transforming Municipal Solid Waste (MSW) into a useful compost material. The method involves both a pre-treatment and a treatment phase. In the pre-treatment phase, a waste stream is processed to remove valuable waste after which the waste is ground to a suitable size. In the treatment phase, heat and pressure are applied to the waste and activators are added to sterilize the waste and transform it into a useful end product.

The soil modifier includes a porous material obtained by dry distillation of refuse-derived fuel to pioneer a cheap way for effectively utilizing the refuse, thereby enabling the environment to be improved by modification of soil while promoting environment preserving disposal of the refuse. The porous material includes carbon, nitrogen, sulfur, phosphorus, potassium, and zinc.

This disclosure is directed to a method for recycling the packaging crates or cartons in which fruits and vegetables are normally shipped, together with any spoiled or rotten fruits, vegetables, meats and the like into reusable compost by first shredding or grinding the packaging material and thereafter combining such shredded packaging material with the organic waste, e.g. rotten fruits and/or vegetables and the like, which are also shredded to form a homogeneous mixture of a predetermined rati...

A method for bringing gases into contact with compostible or partially composted material, in which the material placed in the form of a mass on a layer of particulate material and gas, preferably air, is passed through the material, the air being introduced into the mass through gas-distributing means embedded in or covered by the layer of particulate material, and in which the layer comprises a first part-layer of relatively coarse particulate material intended to serve as protection for the g...

The present invention provides a physical medium for plant growth, produced by the steps including: (a) physically extracting mineral values from ore, thus leaving a by-product of mine tailings; (b) mixing said mine tailings and organic sewage sludge together in order to form an organically enriched material; (c) adding pulverized garbage and rubbish to the mixture of step (b); (d) dehydrating the mixture of step (c); and (e) crushing the resulting mixture into particles having a diameter of no ...